MIKE is a spirit in Twin Peaks who can inhabit a human host, similar to the series' primary villain, BOB, who was his partner in serial murder. After committing several rape/murders with BOB, MIKE claims to have had a religious epiphany and repented, cutting off his own arm to rid himself of a "Fire Walk With Me" tattoo, which symbolized being touched by "the devilish one". BOB, however, would not repent. MIKE has spent years trying to find and stop BOB.